Molecular systematics of the genus senecio l. Ii: The origin of s. vulgaris l.

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Abstract

The origin of Senecio vulgaris L. and the relationship of its two subspecies, ssp. vulgaris and ssp. denticulatus (O. F. Muell.) P. D. Sell, are examined using nuclear ribosomal and chloroplast DNA analyses. No evidence was found to support either an allopolyploid or an autopolyploid origin of S. vulgaris, although it would appear that S. vernalis Waldst. andKit. is not one of the progenitor taxa. Two results of particular interest were found: (i) the apparent identity of the chloroplast genomes of S. vulgaris ssp. vulgaris and S. squalidus L. and (ii) the divergence of the chloroplast genomes of ssp. vulgaris and Ainsdale ssp. denticulatus by at least eight site mutations. These results are discussed in the light of evidence derived from morphological, cytological and allozyme studies. © 1992 The Genetical Society of Great Britain.

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Harris, S. A., & Ingram, R. (1992). Molecular systematics of the genus senecio l. Ii: The origin of s. vulgaris l. Heredity, 69(2), 112–121. https://doi.org/10.1038/hdy.1992.103

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